JEE Main 2024 — Thermal Properties of Matter Question with Solution
JEE Main 2024 (04 Apr Shift 1)
Question
The resistances of the platinum wire of a platinum resistance thermometer at the ice point and steam point are and respectively. After inserting in a hot bath of temperature , the resistance of platinum wire is :
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Given
Also, $\begin{aligned} & \therefore 10=8(1+\alpha \times 100) \Rightarrow 100 \alpha=\frac{1}{4} \\ & \therefore \mathrm{R}_{400}=8(1+400 \alpha)=8(1+1)=16 \Omega \end{aligned}$
Also, $\begin{aligned} & \therefore 10=8(1+\alpha \times 100) \Rightarrow 100 \alpha=\frac{1}{4} \\ & \therefore \mathrm{R}_{400}=8(1+400 \alpha)=8(1+1)=16 \Omega \end{aligned}$
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This is a previous-year question from JEE Main 2024, covering the Thermal Properties of Matter chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.